*{
    margin: 0;
    padding: 0;
}
.navbar{
    background: rgba(252, 251, 251, 0);
    border: rgba(214, 20, 20,0) solid 1px;
}
.bg{
    width: 100%;
    height: 300px;
    background: linear-gradient(to right,rgb(4, 86, 163),rgb(7, 154, 239),rgb(4, 86, 163));  
}
.tu{
    width: 100%;
    height: 200px;
}
.zz{
    position: relative;
    top: -120px;
   
    overflow: hidden;
}
h1, h3{
    width: 100%;
    overflow: hidden;
}
#aa div{
    width: 300px;
    height: 300px;
    background: rgb(247, 245, 245);
    position: relative;
    float: left;
    border: rgba(48, 47, 47,0.5) solid 0.5px;
    margin: 20px;
    left: 100px;
}
#aa h2{
    background: rgb(7, 37, 190);
    color: rgb(255, 255, 255);
}
.jg{
    position: relative;
    left: 50px;
    bottom: -40px;
    font-size: 50px;
}
.dd ul{
    position: absolute;
   top: 200px;
   left: 100px;
}
.row{
    margin: 0;
    padding: 0;
}
.abc{
    width: 100%;
    height: 10%;
    background: #000;
    clear: both;
}
.abc p a{
    color: aliceblue;
}
.abc p{
    margin-left: 600px;
    color: aliceblue;
}